Hi Ted,
In my case, there is a 6 Node HBase cluster setup (running on Oracle BDA).
Each node has plenty of RAM (64GB) and CPU cores. Several articles seem
to suggest
that it is not a good idea to allocate too much RAM to region server's
heap setting.
If each region server has 10GB heap and there is only one region server
per node, then
I have 10x6=60GB for the whole HBase. This setting is good for ~100M
rows but starts
to incur lots of GC activities on region servers when loading billions
of rows.
Basically, I need a configuration that can fully utilize the free RAM on
each node for HBase.
Thanks,
Jane
On 7/16/2014 4:17 PM, Ted Yu wrote:
Jane:
Can you briefly describe the use case where multiple region servers are
needed on the same host ?
Cheers
On Wed, Jul 16, 2014 at 3:14 PM, Dhaval Shah <[email protected]>
wrote:
Its certainly possible (atleast with command line) but probably very
messy. You will need to have different ports, different log files,
different pid files, possibly even different configs on the same machine.
Regards,
Dhaval
________________________________
From: Jane Tao <[email protected]>
To: [email protected]
Sent: Wednesday, 16 July 2014 6:06 PM
Subject: multiple region servers at one machine
Hi there,
Is it possible to run multiple region servers at one machine/node? If
this is possible, how to start multiple region servers with command
lines or cloudera manager?
Thanks,
Jane
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